Influencer Redux

Time Magazine's 100 Most Influential People had a cover with Mary Barra, the new CEO of GM--it was one of the many covers they had put together. I wonder...is she one of the Top 100 Most Influential, if she didn't have enough influence within GM when she was an executive vice president? [I'm all in favor of a female leader for GM. I'm just not sure if she lacked influence before she became CEO or the board also needs to be changed in order for GM to do the right things, fixing problems they know about before they become crises.]